Confinement‐Enhanced Multi‐Wavelength Photon Upconversion Based on Triplet–Triplet Annihilation in Nanostructured Glassy Polymers
Abstract Sensitized triplet–triplet annihilation photon upconversion (sTTA‐UC) allows blue‐shifting non‐coherent low‐intensity light and is potentially useful in solar‐powered devices, bioimaging, 3D printing, and other applications. For technologically viable solar energy harvesting systems, solid...
Saved in:
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2025-04-01
|
| Series: | Advanced Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/advs.202415160 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849729656534597632 |
|---|---|
| author | Xueqian Hu Luca Pollice Alessandra Ronchi Marco Roccanova Michele Mauri Davide Lardani Dimitri Vanhecke Angelo Monguzzi Christoph Weder |
| author_facet | Xueqian Hu Luca Pollice Alessandra Ronchi Marco Roccanova Michele Mauri Davide Lardani Dimitri Vanhecke Angelo Monguzzi Christoph Weder |
| author_sort | Xueqian Hu |
| collection | DOAJ |
| description | Abstract Sensitized triplet–triplet annihilation photon upconversion (sTTA‐UC) allows blue‐shifting non‐coherent low‐intensity light and is potentially useful in solar‐powered devices, bioimaging, 3D printing, and other applications. For technologically viable solar energy harvesting systems, solid materials that capture a large fraction of the solar spectrum and efficiently upconvert the absorbed energy must be developed. Here, it is shown that broadband‐to‐blue UC is possible in air‐tolerant, easy‐to‐access, nanostructured polymers comprising a rigid hydrophilic matrix and liquid nanodroplets with dimensions on the order of tens of nanometers. The droplets contain 9,10‐bis[(triisopropylsilyl)ethynyl] anthracene (TIPS‐Ac) as emitter/annihilator and palladium(II) octaethyl porphyrin (PdOEP) and palladium(II) meso‐tetraphenyl tetrabenzoporphine (PdTPBP) as sensitizers. The confinement of the three dyes in the liquid domains renders the various bimolecular energy transfer processes that are pivotal for the TIPS‐Ac's triplet sensitization highly efficient, and the simultaneous use of multiple light harvesters with triplet energy levels resonant with the emitter/annihilator increases the absorption bandwidth to ca. 150 nm. The UC process at low power densities is most efficient when both sensitizers are simultaneously excited, thanks to their confinement in the nanodroplets, which leads to an increase in the triplet density, and therefore TTA rate and yield, optimizing the use of the harvested energy. |
| format | Article |
| id | doaj-art-8f3dd931a5b74536b201d68ca2841a38 |
| institution | DOAJ |
| issn | 2198-3844 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj-art-8f3dd931a5b74536b201d68ca2841a382025-08-20T03:09:08ZengWileyAdvanced Science2198-38442025-04-011214n/an/a10.1002/advs.202415160Confinement‐Enhanced Multi‐Wavelength Photon Upconversion Based on Triplet–Triplet Annihilation in Nanostructured Glassy PolymersXueqian Hu0Luca Pollice1Alessandra Ronchi2Marco Roccanova3Michele Mauri4Davide Lardani5Dimitri Vanhecke6Angelo Monguzzi7Christoph Weder8Adolphe Merkle Institute University of Fribourg Chemin des Verdiers 4 Fribourg 1700 SwitzerlandDipartimento di Scienza dei Materiali Università degli Studi Milano‐Bicocca Via Roberto Cozzi 55 Milano 20125 ItalyDipartimento di Scienza dei Materiali Università degli Studi Milano‐Bicocca Via Roberto Cozzi 55 Milano 20125 ItalyDipartimento di Scienza dei Materiali Università degli Studi Milano‐Bicocca Via Roberto Cozzi 55 Milano 20125 ItalyDipartimento di Scienza dei Materiali Università degli Studi Milano‐Bicocca Via Roberto Cozzi 55 Milano 20125 ItalyAdolphe Merkle Institute University of Fribourg Chemin des Verdiers 4 Fribourg 1700 SwitzerlandAdolphe Merkle Institute University of Fribourg Chemin des Verdiers 4 Fribourg 1700 SwitzerlandDipartimento di Scienza dei Materiali Università degli Studi Milano‐Bicocca Via Roberto Cozzi 55 Milano 20125 ItalyAdolphe Merkle Institute University of Fribourg Chemin des Verdiers 4 Fribourg 1700 SwitzerlandAbstract Sensitized triplet–triplet annihilation photon upconversion (sTTA‐UC) allows blue‐shifting non‐coherent low‐intensity light and is potentially useful in solar‐powered devices, bioimaging, 3D printing, and other applications. For technologically viable solar energy harvesting systems, solid materials that capture a large fraction of the solar spectrum and efficiently upconvert the absorbed energy must be developed. Here, it is shown that broadband‐to‐blue UC is possible in air‐tolerant, easy‐to‐access, nanostructured polymers comprising a rigid hydrophilic matrix and liquid nanodroplets with dimensions on the order of tens of nanometers. The droplets contain 9,10‐bis[(triisopropylsilyl)ethynyl] anthracene (TIPS‐Ac) as emitter/annihilator and palladium(II) octaethyl porphyrin (PdOEP) and palladium(II) meso‐tetraphenyl tetrabenzoporphine (PdTPBP) as sensitizers. The confinement of the three dyes in the liquid domains renders the various bimolecular energy transfer processes that are pivotal for the TIPS‐Ac's triplet sensitization highly efficient, and the simultaneous use of multiple light harvesters with triplet energy levels resonant with the emitter/annihilator increases the absorption bandwidth to ca. 150 nm. The UC process at low power densities is most efficient when both sensitizers are simultaneously excited, thanks to their confinement in the nanodroplets, which leads to an increase in the triplet density, and therefore TTA rate and yield, optimizing the use of the harvested energy.https://doi.org/10.1002/advs.202415160nanomaterialspolymerssolar harvestingtriplet‐triplet annihilationupconversion |
| spellingShingle | Xueqian Hu Luca Pollice Alessandra Ronchi Marco Roccanova Michele Mauri Davide Lardani Dimitri Vanhecke Angelo Monguzzi Christoph Weder Confinement‐Enhanced Multi‐Wavelength Photon Upconversion Based on Triplet–Triplet Annihilation in Nanostructured Glassy Polymers Advanced Science nanomaterials polymers solar harvesting triplet‐triplet annihilation upconversion |
| title | Confinement‐Enhanced Multi‐Wavelength Photon Upconversion Based on Triplet–Triplet Annihilation in Nanostructured Glassy Polymers |
| title_full | Confinement‐Enhanced Multi‐Wavelength Photon Upconversion Based on Triplet–Triplet Annihilation in Nanostructured Glassy Polymers |
| title_fullStr | Confinement‐Enhanced Multi‐Wavelength Photon Upconversion Based on Triplet–Triplet Annihilation in Nanostructured Glassy Polymers |
| title_full_unstemmed | Confinement‐Enhanced Multi‐Wavelength Photon Upconversion Based on Triplet–Triplet Annihilation in Nanostructured Glassy Polymers |
| title_short | Confinement‐Enhanced Multi‐Wavelength Photon Upconversion Based on Triplet–Triplet Annihilation in Nanostructured Glassy Polymers |
| title_sort | confinement enhanced multi wavelength photon upconversion based on triplet triplet annihilation in nanostructured glassy polymers |
| topic | nanomaterials polymers solar harvesting triplet‐triplet annihilation upconversion |
| url | https://doi.org/10.1002/advs.202415160 |
| work_keys_str_mv | AT xueqianhu confinementenhancedmultiwavelengthphotonupconversionbasedontriplettripletannihilationinnanostructuredglassypolymers AT lucapollice confinementenhancedmultiwavelengthphotonupconversionbasedontriplettripletannihilationinnanostructuredglassypolymers AT alessandraronchi confinementenhancedmultiwavelengthphotonupconversionbasedontriplettripletannihilationinnanostructuredglassypolymers AT marcoroccanova confinementenhancedmultiwavelengthphotonupconversionbasedontriplettripletannihilationinnanostructuredglassypolymers AT michelemauri confinementenhancedmultiwavelengthphotonupconversionbasedontriplettripletannihilationinnanostructuredglassypolymers AT davidelardani confinementenhancedmultiwavelengthphotonupconversionbasedontriplettripletannihilationinnanostructuredglassypolymers AT dimitrivanhecke confinementenhancedmultiwavelengthphotonupconversionbasedontriplettripletannihilationinnanostructuredglassypolymers AT angelomonguzzi confinementenhancedmultiwavelengthphotonupconversionbasedontriplettripletannihilationinnanostructuredglassypolymers AT christophweder confinementenhancedmultiwavelengthphotonupconversionbasedontriplettripletannihilationinnanostructuredglassypolymers |